Which component changes the pump from series to parallel or from pressure to volume?

Which component changes the pump from series to parallel or from pressure to volume?

• A. Transfer Valve
• B. Throttle
• C. Suction Valve
• D. Discharge Valve

Answer: (A)

Switching between higher pressure and higher volume is done by reconfiguring how the pump stages are connected, and that is accomplished by the transfer valve. The transfer valve re-routes flow so water can pass through the stages in series for increased pressure or in parallel for increased volume. It’s the component designed specifically to change the pump’s configuration. The other valves don’t change the arrangement: throttle adjusts pump/engine speed, suction valves control priming and suction isolation, and discharge valves regulate flow from individual outlets but don’t reconfigure the stage connections or switch between series and parallel.

Switching between higher pressure and higher volume is done by reconfiguring how the pump stages are connected, and that is accomplished by the transfer valve. The transfer valve re-routes flow so water can pass through the stages in series for increased pressure or in parallel for increased volume. It’s the component designed specifically to change the pump’s configuration.

The other valves don’t change the arrangement: throttle adjusts pump/engine speed, suction valves control priming and suction isolation, and discharge valves regulate flow from individual outlets but don’t reconfigure the stage connections or switch between series and parallel.